Speaker



FIG. 1 is a perspective view of front, right, and top of speaker according to an embodiment of the invention;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a perspective view in the condition that an electric device is on the cradle extracted from the speaker thereof.

The broken lines represent the portions of the design that form no part of the claim. 

The ornamental design for a speaker, as shown and described. 